44hunter45
Well-known member
Not my area of expertise and am not terribly familiar with the open field doctrine, but a quick search on Westlaw shows that the plaintiffs brought their claims in federal district court first and it was dismissed because (1) the open field doctrine applied precluding the unlawful search claims, and (2) the agents were entitled to qualified immunity as government employees. That decision came out late last year, so I would be surprised if the agents didn't bring a similar motion in state court. Not sure what the statutory scheme is in Tennessee and if that will make a difference.
More substantively, it appears the open field doctrine relies on distinguishing between zones of privacy. There are certain zones in which citizens should expect privacy under the fourth amendment (home, car, etc...), while that expectation should not run to other areas (barn, woods, and even a driveway). Somewhat nuanced but relatively clear that the expectation of privacy doesn't extend much further than one's own home. The USSC affirmed that line of reasoning in a 1986 case in which Dow Chemical brought suit against the EPA for aerial photography of its industrial complex. USSC held that wasn't a "search" for fourth amendment purposes. This should be an interesting case.
As an aside, it appears a large portion of the case law on the open field doctrine is from land owners getting caught growing illicit drugs.
Refresh my memory. Isn't it this "zones" concept the same that can mean you are not protected by the Castle Doctrine if you shoot a trespasser on your property, but outside your home?